Problem
Priya just started a business and is not sure how many units she needs to sell to earn a 30% profit margin. She currently makes coffee with coffee beans costing $0.50/coffee cup ordered. Rent for her sweets and coffee shop costs $1200.00/month and she currently charges $2.50 per cup of coffee. How many units does Priya need to sell to realize a 30% profit margin? What is the $ profit for that month?